Lubricator



(No Model.)

G. W. BROWN.

LUBRIGATOR.

No. 423,662. Patented Mar. 18, 1890.

VH-NESSEE:

@ffm @MAW /Z I l44 PETERS, Phew-Lithography. Walhington, D. C.

UNITED STATES PATENT OFFICE.

GILMAN W. BROWN, oF WEST NEWBUEY, MASSACHUSETTS.

LU BRICATOR.

' SPECIFICATION forming pere of Letters Patent No.' 423,662, dated Merch1s, 1890. 1 l Application led June 10, 1889. l Serial No. 313,642. (Nomodel.) I

Vest Newbury, in the county of Essex and.

State of Massachusetts, have invented certain new and usefulImprovements in Lubricators,

of which the following is a specification.

This invention relates to oil cups or lubricators, Which are providedwith means Whereby an increased iioW of oil is occasioned by an increaseof the temperature of the bearing to Which the cup is attached.

The invention has for its object to provide simple and effective devicesfor increasing the lioW of oil from an oil-cup by an increase oftemperature of the bearing, and for decreasing or checking the flow by adecrease in the temperature of the bearing; and to this end it consistsin the improvements Which I Will 110W proceed to describe and claim.

Of the accompanying drawings, forming a part of this specication, Figurel represents a vertical section of an oil cup or lubricator embodying myinvention. Fig. 2 represents a modification.

The same letters of reference indicate the same parts in both figures.

In the drawings, o represents an oil cup or reservoir, and b representsa metallic shank, Which supports the cupaud has an oil passage orconduit extending through it and communicating With the oil-reservoir.The body of the cup is preferably of glass, suitably secured to theshank, although both may be made of metal in one piece, if preferred.The shank is externally screw-threaded at its lower end, or otherwisefitted for attachmentV means of a bushing or insulator of any suit--able material which is a poor conductor of heat, such as vulcanizedliber or boxWood. Said Insulator prevents, to a great extent, the

.conduction of heat from the shank b to the standard or valve support h,so.that if the does not expand.

bearing becomes heated the shank b, Which is in direct contact With thebearing, is heated thereby and is expanded, While the standard or valvesupport protected by the insulator i The result is the separation of theseat g from the valve and an increased flow of oil.' To additionallyprotect thestandard or valve support from heat radiated from'the shankb, a sleeve or casing t" of non-conducting material may be placedthereon 'Within the shank b and above .the insulator t'. It will be seenthat the standard or valve support 7i thus protected may be madeof thesame metal as the cup-supporting shank, no unequal expansion of twovmetals havingV dilerent coefficients of expansion being required.

The standard or 'valve support h (shown in Fig. l) is tubular, andserves as apart of the oil-conduit through the shank o, and the valve isshown as provided With a central depression f in Which an orificethrough the valve terminates, the arrangement being such that oildropping from the valve falls into the tubular standard or valve supporth, and is visible. through an open cage or frame connecting the valveWith said standard or valve support and through sight-openings formed inthe shank o. The oil flowing through said tubular standard or valvesupport has a tendency to prevent the heating of the same, and thereforeco-operates with the insulator in producing the described result.

I do not limit my present improvement, however, to use in connectionWith a valve of the general construction here shown and described, itbeing obvious that the construction and arrangement of the essentialparts may be variously modified Without departing from the spirit of myinvention. A modification is shown in Fig. 2, in which the valve issupported by a standard or valve support composed of tWo metal strips Ss', separated by an interposed insulator t. The valve, Which in thisfigure is lettered f2, is attached to the strip s', and the strip Sbears against a projection b on the shank b, to Which the strips areattached. The strip S is therefore heated by the shanlrwhen the latteris heated, and is therefore expanded, While the strip S, protected bythe insulator, does not expand. The result is a bending of the standardor IOO n '2 l l 423,662

valve support, whereby the valve is moved away from its seat. l The seatg2 for the valve is at the end of a tube t, which is inserted in athreaded oriee inthe shank b, and has an 5 externally-threaded portionin said socket, so that by turning the tube the seat g2 may be adj ustedtoward or from the valve. The tube is provided with an `arm fu, wherebyit may be turned. w represents astop-pin attached 1o to the shank b andarranged to serve as a stop for the arm e, and thus limit the turning ofthe tube t. 'lz/represents a projection on the shank b below the seatg2. The oil escaping through the seat g2 trickles down said I 5projection and falls from the lower end thereof through an opening ybelow it in the projection b.

I elaimi 1. The combination of a cup-supporting I 2o shank having` anoil-conduit, a valve to oontrol the passage of oil through said conduit,and an insulator composed of a non-conductor of heat, whereby variationsof temperature affecting said shank are prevented from af- 2 5 fectingthe valve, as set forth.

2. The combination of a cup-supporting shank having an oil-conduit and avalve-seat therein, ya valve arranged to co-operate with 2 said seat anda non-conducting holder or 3o bushing separating said valve from Vtheshank or standard, substantially as and for the purpose specified. Y

3. The combination of a cup-supporting shank having an oil-conduit and avalve-seat therein, a valve arranged -to co-operate with 35 L thereof, avalve within the shank adapted to control the discharge of oil from thereservoir, a. tubular support for the valve composed of 4metal, and abushing of non-conducting ma- 45 terial vinterposed between said tubularsupf port and the shank, whereby said support is 4connectertwith theshank and the conduction of heat from the shank to the support isprevented, said support being arranged to' 5o Serve also as a conduitfor the oil that passes the valve, as setforth. j

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 22d day of 5` 5 January, A.D'. 1889.

GILMAN W. BROWN.

Witnesses:

C. F. BROWN,

A. D. HARRISON.

